5 72 Order 93.— CONVOLVULACE^E. 



2 P. Nil Chois. Morning Glory. Lvs. cordate, 3-lobed; fls. half 5-cleft; ped. 

 shorter than the petioles, 1 — 3-flowered; sep. ovate, long-pointed, densely hairy 

 below. — A very beautiful twining plant, found wild, Penn. to Flor., in fields, but 

 best known as a garden annual. Stem and leaves somewhat hairy. Flowers 

 large, the tube white and the border of a clear blue color (whence its specific 

 name, Anil or Nil, indigo), drying light scarlet. It is of the easiest culture, and 

 raised from the seed. July — Sept. f 



4. I POM (PA, L. False Bind-weed. (Gr. tip, iTtog, bind-wced (or 

 perhaps l<+>og, ivy), and ofiotog, similar.) Calyx 5-sepaled ; Corolla cam- 

 panulate; stam. included; style 1; stigma capitate, usually 2-lobed ; 

 ovary and capsule 2-cellod, cells 2-secded. — A large genus of herbs, 

 shrubs or trees, chiefly tropical. One species are herbs, creeping or 

 climbing. 



* Flowers capitate, involucrate, small, blue. Sepals hairy No. 1 



* flowers separate. — Sepals bristly ciliate, capsules somewhat hairy Nos. 2, 3 



— Sepals glabrous. — Flowers purple. Maritime Nos. 4, 5 



— Flowers white, rarely yellow Nos. 6—3 



1 I. tamuifolia L. St. terete, hirsute; lvs. hirsute ovate, cordate, acuminate; 

 ped. as long as the leaves ; fl •>. (small, blue) in involucrate heads, bracts unequal, 

 lanceolate or linear, acute ; sep. very hairy, linear-subulate. — '£) Middle Ga. to 

 La. Vine trailing and climbing, clothed all over with tawny hairs. Lvs. large, 

 on long petioles. Ped. 2 to 3' long. Fls. crowded, 9" long, blue. 



2 I. commutata R. & S. St. slightly pubescent; lvs. cordate, entire or 3-lobed, 

 amoothish, hairy at the insertion of the long petiole, auricles obtuse below, middle 

 lobe dilated at base or ovate; ped. about equaling the petioles, 2 to 5-floivered; 

 sepals lanceolate, acuminate, ciliato-hirsute, 4 times shorter than the corolla; caps. 

 hairy. — J) In dry fields, S. Oar. to La. Sts. twining and climbing. Petioles 1 to 

 2' long. Fls. usually 3 on each peduncle, purple, varying to pink, bell-shaped, 

 18" long. Jl.— Oct. (I. trichocarpa Ell.) 



3 I. lacuuosa L. Minutely pubescent ; st. twining; lvs. cordate, acuminate, an- 

 gular-lobed or entire, on long petioles; ped. 1 to 3-flowered, half as long as the 

 petioles; sep. bristly ciliate, oblong-lanceolate, acute, half as long as the corolla; 

 caps, pilous. — (J) Penn., Md. to Fla., La. and 111. A small, prostrate species, 2 to 

 Gf long, in dry fields and bills. Lvs. 2' by 1-}', deeply cordate, often deeply 3- 

 lobed, petioles 1 to 3' long. Fls. about 1' long, white with a purplish rim. Aug., 

 Sept. (C. micranthus Riddcll.) 



4 I. Pes-capree Sw. St. prostrate, slightly scabrous ; lvs. roundish, emarginaie 

 or 2-lobed, rather thick, petiolate, strongly veined ; ped. 1 to 5 (generally 3)-floivered, 

 as long as the petioles; sep. ovate-lanceolate; cor. ample, with a short tube. — 

 Coast and Isl. of Ga. Lvs. 2 to 3' long and wide, as long as the petioles and 

 peduncles. Pedicels bracted, 1 to 2' long. Cor. near 3' long, purple. Jn. — 

 Sept. 



5 I. sagittata Desf. Glabrous ; lvs. cordate-sagittate, veiny, gradually acute and 

 mucronate, auricles acute or rounded, petioles elongated; ped. as long as the 

 petiole, but much shorter than tho solitary, ample flower ; sop. ovate, obtuse, 

 short. — 11 Borders of salt marshes, S. Car., Ga. to La. St. long and twining. Lvs. 

 2 to 3' long, the sides nearly straight. Ped. very thick. Cor. 3' long, the bor- 

 der spreading 2' or more, purple. Jn. — Aug. 



G I. sinuata Ort. St. hirsute; lvs. glabrous, or the veins beneath hirsute, pair 

 malely 1 -cleft, the segm. pinnalifid, with obtuse teeth; ped. 1 to 2 -flowered, as 

 long as the petioles; sopals lanee-ovate, nearly as long as the tube of the cam- 

 panulato corolla. — U Ga., Fla., in calcareous soils (Michaux). Lvs. varying to 

 sinuato-lobed. A twining vine. Fls. white, 1' long. (I. dissccta Ph.) 



7 L ciliolata Pers. St. smooth ; lvs. cordate, acuminate, smooth, the margin 

 sparingly ciliate, petioles elongated ; ped. 1 -flowered, 2 -bracted above, as long as 

 the petioles ; sep. broadly ovate, obtuse or mucronulate ; cor. tubular, companulato. 

 — 1(. N. Car. and Tenn. Vino twining and climbing, with lvs. elegantly heart- 

 shaped, aud large yellow corollas. Sep. large 1 to 9" long. (1. ciliosa Ph.) 



